<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <!-- 选择一个 -->
        <select name="select" v-model="fruit">
            <option value="苹果">苹果</option>
            <option value="香蕉">香蕉</option>
            <option value="榴莲">榴莲</option>
            <option value="葡萄">葡萄</option>
        </select>
        <h2>你选择的是: {{fruit}}</h2>

        <!-- 选择多个 -->
        <select name="select" v-model="fruits" multiple>
            <option value="苹果">苹果</option>
            <option value="香蕉">香蕉</option>
            <option value="榴莲">榴莲</option>
            <option value="葡萄">葡萄</option>
        </select>
        <h2>你选择的是: {{fruits}}</h2>
    </div>
    <script src="../js/vue.js"></script>
    <script>
        const app = new Vue({
            el: '#app',
            data: {
                fruit: '香蕉', //选择一个
                fruits: [] //选择多个
            }
        })
    </script>
</body>
</html>